Sewing-machine.



E. A. KAUMEYER & D. M. BLOOM.

SEWING MACHINE. APPLICATION FILED JAN-2.1918- Patented Apr. 15, 1919.

2 SHEETSSHEET l.

E. A. KAUME'YER & D. M. BLOOM.

SEWING MACHINE.

APPLICATION FILED JAN.2.19I8. 1 309 843 8 Patented Apr. 15,1919.

2 SHEETS-SHEET 2.

To all whom it may concern:

- invention is to provide a sewing machine by EDWARD axe'ofmnman n DAVID M. BLooM, or'cmceso, rumors; SAID KAUMEYER ASSIGNOR T0 SAiD-IBLQOM.

Lac osse.

Be it known that we, Eowann A. MEYER and DAVID M. Brown, OItlZBIlS of the United States, and residents. of Chicago, Cook county, and State of Illinois, have, in-

vented certain new and useful Improvements I in Sewing-Machines, of which the following is declared to be a full, clear, and exact description.

This invention relates to sewing machines and its primary object is to provide a sewing machine for sewing the lower ends of sleevelining to the coatsleeves. Heretofore,

this operation has been done by hand hecauseof the absence of any machine capable of satisfactorily performing this particular sewing operation. Another ob ect of this means of which the stitches in the completed article are caused to resemble hand sewed stitches Another object is to pro vide a machine by which the operation of sewing the lower end of the sleeve l ning to the coat sleeve may be accomplished quickl and with'much greater ease than the la rious task of performing this operation by hand. Another object is to pro vide a machine which will produce everyfinished stitches in sewing the, sleeve lining to the coat sleeve. Other objects and advantages will appear in the following specification, and with all of said objects and ad-' vantages in. view, thisinvention consists in the several novel features of construction,:

arrangement and combination of parts here,- inafter fully setforth and more particu larly defined in the claims.

The invention isclearly illustrated in the accompanying drawings, in which:

Figure 1, is a perspective'view of a sewing machine embodying a simple form of the present invention} Fig. 2,.is a side elevation-fthereof, with the sewing machine head partly broken away' Fig. 3, is a planlooking at .the .under si eof the sewing machine head and work. support; Fig; 4,"

is an end view of the work su port and its cover, and a fragment of the ase, looking in the direction of the arrow 4, in Fig. 2;

Fig. 5, is a detail, vertical cross section taken on the line 5-5 of Flg. 3'; Fi 6, isa face view of a fragment of a coat s eeve and lim ing showing the lining and sleeve sewed together by a machine embodying the present 1nv'ention,,andFig. 7, i'sa fragmental'face Specification of Letters Patent- Patented Application filed January 2, 1918. .Serial N 209,863.

stitch sewing machine head as snwme-maoniun.

-view of said lining and sleeve after the sleeve lining has been turned back from the pos1t on seen in Fig. 6, and showing the coat sleeve-limingand theseam in their finishedform.

Referring to 'saiddrawin s, the reference character 10, designates a '-1nger zig zag,

lock stitch, sewing machine-head, the mechanism of which is of well tlonand requires no detailed description so far as this specificationis concerned. ,Ref-.

erence is made to Patent No. 1,020,089, is-

Apr. 15, 1919.

known oonstrucso I sued March 12, 1912, to O. F. Gray. 'The sewing machine head chosen for the pur pose of illustration-, is one made by the Smger Sewing Machine Co., and, as iswell known .tothoseskille'd in this art, this'machine sews 'a zig .zag, lock'stitch, such as is lllustrated graphically in Fig. 6, the needle being shifted sidewise by suitable mechanism each time the material is'fed forward from its connection with the arm of the machine head, to and under the needle, "and have-rearranged and reconstructed the base above the sewln'g machine table so as to permit a sleeve to be placed. around said,

extension to enable it to-sew the seam which base portion 11, is made hollowan d'receives any oil drippings: that ma come fromthe interior .of t

and engages with "a rib 16, upon the bin ed'portion 13, athumb screw 17,. ex-

ten ing'throughsaid clamp plate 15, and

, I t present invention we have narrowed that:

. part ofthe work support which extends mechanism between the drive shaft of the sewing machine head and-the feeddogand jshuttle carrying"hook,.,and have. provided :means for supporting said, extension of the connects the lower end of the sleeve r 1 sewing machine table, and ahinged portion 13, which ishingedto the statlonar portion by :means \of hinges 14. 'Preferab y, the

ice

6 .arm.- A camp plate 15,, is" provided upon the stationary base portion I being threaded in the wall of the stationary base 12, for clamping the clamp plate 15,

- sewing the lower end of 13, is formed with a work support 18, at

its upper end which underlies the'arm of the sewing machine head and extends beyond the p-resser foot and needle, as is'cus tomary, butsaid work support 18, is made considerably narrower beyond the base por- ,tion 11, as is clearly seen in Figs. 1 and 3.

It is made narrow enough to permit a sleeve of small size to he slipped over same when the'sleeve lining to the sleeve itself.

Below the work support 18, is a cover 19,

which incloses the operative parts of the machine below the work support 18, and said cover is detachably secured to the work support, as for instance, by providing a lu 20, on one end, that enters a notch in the se 11, and engageswith the inner side thereof and acts as a hinged connectionbetween the cover 19, and base 11, whereby it may be permitted'to swing down to expose the operative partsto v1ew, such position is seen in dot-ted lines in Fig. 2. "Ai latch plate 21,

cured to the undersi and pushing against the underside of. said depressed portions 22. Said latch plate 21,

secures the cover to the work support and said latch plate covers an opening in the upper side of the work support and-is slidably held upon depressed portions 22,"of

the work support byepringlike arms-23, se

has a dove tail connection 24, with the cover 19 (see Fig. 4)'comprising a lug on the underside of the latch plate which is slidable into andout of a notch in the end of the cover; the sides of the'lug and notch of the cover are inclined, as seen afford the dove tail connection.

Supported upon the underside of the work support are the shuttle'carrying hook and feed dog actuating mechanism. .parts are well known and are comprised in the Singer zig zag, lock stitch sewing machine illustrated herein, butwe have rearranged many of the parts,- have re-constructed others and have changed the loca tion of many to enable a narrow work support to be employed so that the'machine may be adapted for, sewing the lower end of sleeve linings to the coat sleeves. In this reconstructed machine, the hook driving bevel pinion shaft 25, the feed lifting hollow rock shaft 26, which surrounds said rock shaft-25, and the feed driving rock shaft 27, have been brought closer together than in the ordinary Singer zig zag, lock stitch sewing machine, and their bearings the latch plate lock stitch in Fig. 4, to.

itself, as at b, in Hi6,

28', 29, 30, 31, have been located to allow for the new location of the shafts. Upon the hook driving bevel pinion shaft 25, -'is the usual hook driving bevel pinion 32, which meshes with the usual hook driving bevel gear' 33, which is fast upon the hollow hook shaft 34. Said shaft 34, is journaled in the hook shaft bushing 35, which is fixedly secured in the hollow lug 36, cast upon the lower face of the work support 18. The usualhook 37, is secured upon the shaft 34, by the hook position screw 38, which extends through the hollow shaft 34. Thejhook 37, is arranged to contain the bobbin and bobbin case (not shown) as is customary. The lug .36, bushing 35, hollow shaft 34, and screw 38, have been shortened to bring their outer ends flush with the side of the work support, without, however,

changing the location of the hook 37, which has a definite location relative tothe sewing machine needle as is readily understood.

. The feed lifting hollow rock shaft 26, and

feed driving rock shaft 27 cooperate to, actuate the feed dog 39, in the usual manner, but,

the feed dog bar 40, which connects with the feed lifting crank 41, is madeshorterthan usual 'becauseof the closer relation of the shafts 25, 26, 27. The rock shaft 27, with its crank arm 42, terminates back of the feed bar 40, and the latter is pivotally secured to the crank arm 42, by the feed bar hinge Y screw 43. Theshafts- 26, 27, have the usual connection cranks 42 43 connected to the usual feed driving connections 45, that receive their'reciprocatory movements from mechanism head, ,andthe shaft'25, is driven by achain 4 6, -as is customary in the Singer zig zag,

sewing machine. v

No detailed description of the Singer zigzag lock stitch operating mechanism is thought necessaryso far-as this specification 1s concerned, as those parts are well known to those skilled in the art to which this invention pertains and the operation of a Singer zig; zag, lock stitch machine resecured thereon,

contained in the quires no especialiexple'nation so far as this specification isconcerned. The form of stitch. is clearly shown-in Fig. .6, and a machine adapted for sewing this stitch is used because this typeof stitch doesnot ravel,

v and acts as a hinge in turning the lining ever u on itself in bri ging the sleeve liningto the inside of the sleeve.-

In use the side seams of the sleeve A, and its lining B, are first made and the lining placed around the-sleeve,

.6 is made along t sew the lower end of the lining to the lower end of the sleeve, the sleeve is slipped around the covered work support 18, bringing the the sleeve being I right side out butthe lining being inside out. a

folded edge of the lining in line with the sewing machine needle; the machine is then started and the seam b sewed around the sleeve. The material will travel around the work support 18, without difiiculty, and thus the seam b may be readily sewed around the sleeve. After this seam is -made the lining is turned into the inside of the sleeve along the seam 6 as a hinge or pivot, and the material of the sleeve is allowed to project down an inch or so, as is usual, to give a finished appearance to the inside of the sleeve. The row of stitching which shows in the finished sleeve is illustrated graphically in Fig. 7, and has the appearance of a hand sewed seam, with regular, even stitches.

We claim as new and desire to secure by I Letters Patent:- 1. A sewing machine for sewing the lower end of sleeve linings to coat sleeves, comprising a zig zag, lock stitch sewing machine head, having a narrow work support for supporting the feed dog and hook actuating mechanism, a cover hingedly secured to the under side ofsaid work support, and a base for supporting said work support above a sewing machine table, whereby a coat sleeve and its lining maybe slipped around said work support and its cover to sew a seam around said lining and sleeve.

2. A zig zag, lock stitch sewing machine .head of the type described, having a narrow, 7

work support carried free from a table on which the head is supported and having a cover removably and hingedly secured at the lower side of said work sup-port.

EDWARD A. KAUMEYER. DAVID M. BLOOM. 

